1990 WAEC Biology past questions and answers

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1
Which of the following methods of reproduction is common to Paramecium and Amoeba?

A Conjugation

B Sexual reproduction

C Binary fission

D Budding



Correct Option: C


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2
Which of the following structures controls the activities of the living cell?

A Nucleus

B Centrosome

C Chloroplast

D Golgi body



Correct Option: A


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3
Most of the energy in the cell is produced in the

A mitochondrion

B lysosome

C plastid

D Golgi apparatus



Correct Option: A


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4
The structure in the cell that controls the movement of substances in and out of the cell is the

A cytoplasmic membrane

B nuclear membrane

C cytoplasm

D protoplasm



Correct Option: A


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5
Which of the following structures differentiates an animal cell from a plant cell?

A Ribosomes

B Cell membrane

C Chloroplast

D Mitochondrion



Correct Option: C


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6
At the end of mitosis the number of cells produced from a parent cell is

A four

B six

C eight

D three



Correct Option: E


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7
Which of the following statements is not correct of respiration?

A Gaseous exchange occurs by diffusion

B Oxygen combines with haemoglobin at the respiratory surface

C Carbondioxide produced in the tissues is removed by the process of osmosis

D There are no special organs for respiration in plants



Correct Option: C


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8
At which of the following stages of mitosis do the two daughter chromosomes separate completely?

A Early prophase

B Telophase

C Anaphase

D Late prophase



Correct Option: C


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9
Which of the following processes is not evident from the drawing?

A Lining up of the chromosomes at the equatorial plate

B Centromere attaching a pair of chromatids to a spindle fibre

C Chromatids held by centromere

D Absence of nuclear membrane



Correct Option: C


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10
The stage of mitosis represented in the diagram is known as the

A telophase

B metaphase

C anaphase

D interphase



Correct Option: B


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